* Cookies are now encrypted JWTs (GHSA-wrqq-v7qw-r5w7)
* Authentication is stored in the SQLite database (auto-migrated)
* Session logic is much cleaner
* Added backoff and liveness probes for better management
* Switched IPC to a simple text based system
* Lookups don't directly touch the agent now
* Use the database as a source of truth
we also have added the necessary logic to auto prune ephemeral nodes because
headscale doesn't seem to automatically remove them. this change made use of a database
which is now stored in the persistent headplane directory.
